JPH1134154A - Apparatus and method for insert molding of film material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To integrally mold a film material for a design on a housing surface of a product such as a door mirror for an automobile. SOLUTION: A cavity mold 17 is divided into a mold body 25 and an insert mold 27. And, a gap 29 is formed between the body 25 and the mold 27. The gap 29 communicates with a vacuum pump 35 via a suction passage 31 and a pipe 33. A film material 1 previously vacuum molded in a predetermined shape is set to the mold 17. And, the air is sucked via the gap 29, passage 31 and pipe 33 by operating the pump 35 to suck the material 1 and to temporarily hold it. The mold is closed in this state, and melted resin is injection supplied from an injection port 37 of a core die 23 side to integrally mold the material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for insert-molding a film material by integrally setting the film material in an injection mold.

[0002]

SUMMARY OF THE INVENTION An object of the present invention is to enable a film material for design to be integrally formed on a housing surface of a product such as a door mirror in an automobile.

[0003]

According to a first aspect of the present invention, there is provided a film material insert molding apparatus for setting a film material in an injection mold and integrally molding the film material. One of the molds is provided with a temporary holding mechanism for temporarily holding the film material.

According to the film material insert molding apparatus having such a configuration, the film material is temporarily held by the temporary holding mechanism of one of the injection molding dies, and the mold is closed in this state to put the molten resin into the mold. By injecting and supplying, the film material is integrally formed on the surface of the product.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the temporary holding mechanism includes a suction passage having one end opened to face the film material and the other end communicating with the outside of the mold. Suction means for sucking air through the passage to suck the film material at the opening.

According to the above construction, the film material is sucked by the one mold through the suction passage and temporarily held by the operation of the suction means.

According to a third aspect of the present invention, in the configuration of the second aspect of the present invention, one of the dies is formed such that the dividing line is positioned inside the outer periphery of the temporarily held film material. And the suction passage is formed by a gap formed between the mold body and the nesting mold.

According to the above construction, the film material is adsorbed to one of the molds and temporarily held through the gap between the mold body and the nesting mold by the operation of the suction means.

According to a fourth aspect of the present invention, in the configuration of the first aspect of the present invention, the temporary holding mechanism includes a nest made of a breathable mold material provided at a portion corresponding to the film material to be temporarily held. And a suction means for sucking air through the air-permeable portion of the nesting type to adsorb the film material to the nesting type.

According to the above construction, the film material is adsorbed to one of the molds and temporarily held by the operation of the suction means through the nested air-permeable portion.

According to a fifth aspect of the invention, in the configuration of the first aspect, the temporary holding mechanism is a groove formed in the opening and closing direction of the mold into which the outer peripheral edge of the film material is inserted. There is.

According to the above configuration, the film material is temporarily held by one of the molds by inserting the outer peripheral edge into the groove.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the injection mold includes a core mold having a convex portion and a mold having a concave portion into which the convex portion is inserted. ,
It is configured such that a groove is formed in the protrusion in the core mold.

According to the above construction, the film material is temporarily held by the outer peripheral edge portion being inserted into the groove on the core type side. In addition to avoiding poor appearance, setting the film material is performed on the core-shaped projections, so that the setting operation is facilitated.

According to a seventh aspect of the present invention, in the configuration of the sixth aspect of the present invention, the injection port for the molten resin is provided in the core mold, and at least the injection is performed when the mold is closed in the injection mold in which the convex portion is inserted into the concave portion. The film material near the outlet is in contact with the concave portion.

According to the above configuration, when the mold is closed, the film material near the ejection port provided on the projection is in contact with the recess of the cooled mold. Even when the molten resin is supplied and heat is applied to the film material, the heat is transmitted to the concave portion and damage to the film material is avoided.

According to an eighth aspect of the present invention, in the configuration of the second aspect of the present invention, a pin whose one end surface forms the same surface as the die surface facing the film material is inserted and fixed to one of the dies, and the suction passage is It is constituted by a gap formed between the pin and the mold.

According to the above construction, the air is sucked through the gap between the pin and the mold by the operation of the suction means, whereby the film material is sucked and temporarily held by one of the molds.

According to a ninth aspect of the present invention, in the configuration of the eighth aspect, the injection mold comprises a core mold having a convex portion and a mold having a concave portion into which the convex portion is inserted. ,
An injection port for molten resin and a temporary holding mechanism are provided in the convex portion, respectively, and a film material is temporarily held by the temporary holding mechanism, and the convex portion is inserted into the concave portion at the time of closing the mold of the injection mold. The film material near the injection port is configured to be in contact with the recess.

According to the above configuration, when the mold is closed, the film material near the injection port provided on the convex portion is in contact with the concave portion of the cooled mold. Even when the molten resin is supplied and heat is applied to the film material, the heat is transmitted to the concave portion and damage to the film material is avoided.

According to a tenth aspect of the present invention, in the configuration of the first aspect of the present invention, the temporary holding mechanism is configured such that one end surface of the temporary holding mechanism is positioned between the position where the same surface is formed and the position where the one surface protrudes with respect to the mold surface facing the film material. It comprises a drive pin movable between the pins, a drive mechanism for driving the drive pin, and suction means for sucking air through the suction passage formed in the drive pin to suck the film material.

According to the above construction, while the drive pin is projected from the mold surface by the drive mechanism, air is sucked through the suction passage by the suction means, whereby the film material is sucked on the end face of the drive pin and temporarily. Hold. Here, when the mold is closed, the film material comes into close contact with the other mold surface, and after the supply of the molten resin is started, the operation of the suction means is stopped, and the drive pin is retracted by the drive mechanism so as to be flush with the mold surface.

According to an eleventh aspect of the present invention, there is provided a method of insert molding a film material in which the film material is set in an injection mold and integrally molded, wherein one of the injection molds temporarily holds the film material. Then, the mold is closed, and a molten resin is supplied into the mold to perform insert molding.

According to the above-mentioned forming method, the film material is integrally formed on the surface of the product, and by using this as a design film material, it is possible to decorate the product surface at low cost.

[0025]

According to the first aspect of the present invention, the film material is temporarily held by the temporary holding mechanism in one of the injection molding dies, the mold is closed in this state, and the molten resin is supplied into the mold. The film material can be integrally formed on the product surface for design.

According to the second aspect of the present invention, the air is sucked through the suction passage by the operation of the suction means and the film material is sucked by one of the molds, so that the film material can be temporarily held reliably. .

According to the third aspect of the present invention, by the operation of the suction means, air is sucked through the gap between the mold body and the nesting mold, and the film material is sucked to one of the molds. The holding can be performed reliably.

According to the fourth aspect of the present invention, by the operation of the suction means, air is sucked through the nested air-permeable portion, whereby the film material is adsorbed to one of the molds over a wide area, and the temporary holding is ensured. At the same time, traces on the film material due to adsorption can be eliminated, and the appearance quality of the film material can be improved.

According to the invention of claim 5, the film material is:
By inserting the outer peripheral edge portion into the groove, it is possible to temporarily hold in an easily positioned state. Further, since a groove may be simply provided as the temporary holding mechanism, the cost is low.

According to the invention of claim 6, the film material is:
Since the outer peripheral edge portion is temporarily held by being inserted into the groove on the core mold side, the appearance defect of the mold-type surface of the film material due to the provision of the temporary holding mechanism is avoided, and the film material set is Since the setting operation is performed on the core-shaped convex portion, the setting operation can be easily performed.

According to the seventh aspect of the present invention, when the mold is closed, the film material near the ejection port provided on the projection comes into contact with the recess of the cooled mold. Even if hot molten resin is supplied and comes into contact with the film material,
The heat applied from the molten resin escapes to the mold side, and damage to the film material due to the heat can be avoided.

According to the eighth aspect of the present invention, since the suction passage can be formed by simple machining, the temporary holding mechanism can be made inexpensive.

According to the ninth aspect of the present invention, when the mold is closed, the film material near the ejection port provided on the projection comes into contact with the recess of the cooled mold. Even if hot molten resin is supplied and comes into contact with the film material,
The heat applied from the molten resin escapes to the mold side, and damage to the film material due to the heat can be avoided.

According to the tenth aspect of the present invention, in a state where the drive pin is projected from the mold surface by the drive mechanism, air is sucked through the suction passage by the suction means, whereby the film material is sucked and temporarily held. By closing the mold in this state, the film material is brought into close contact with the other mold side where the temporary holding mechanism is not provided. Therefore, a film material having a shape matching the surface of the other mold is used. be able to.

According to the eleventh aspect of the present invention, the film material is integrally formed on the surface of the product, and by using this as a design film material, it is possible to decorate the product surface at low cost.

[0036]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which a film material 1 for design is integrally formed on the back surface of a housing 3 of a door mirror for an automobile by using the film material insert molding apparatus according to the present invention. FIG. 2 is a sectional structural view showing an example of the film material 1. A coloring layer 7 and a clear layer 9 are respectively coated on a base film material 5 made of an ABS resin of the same material as the housing 3, and this is vacuum formed. To form a predetermined shape, that is, the surface shape of the housing 3 of the door mirror to be integrally formed. After cooling, the end face is cut.
When the housing 3 is injection-molded, the molten resin is welded to the base film material 5 at a stage where the molten resin is injected, whereby the film material 1 is integrally formed with the housing 3. When the resin material of the housing 3 is another material such as polypropylene, the base film material 5 may be a material that can be welded to the material.

FIG. 3 shows another example of the film material 1 in which an adhesive layer 11 is provided instead of the base film material 5 in FIG. 2. In this case, the molding pressure and temperature during injection molding are different. Thus, the adhesive layer 11 is adhered to the housing 3 and the film material 1 is integrally formed with the housing 3. This film material 1 is used as a protective film material that can be peeled off later, and includes a clear layer 9, a colored layer 7, and an adhesive layer 11.
Are laminated and manufactured by a method such as coating.

The film material 1 shown in FIG. 4 is provided with a transparent film material 13 in place of the clear layer 9 in FIG. 3. In this case, the transparent film material 13 is coated with the coloring layer 7 and the adhesive layer 11. Then, similarly to the example of FIG. 3 described above, the housing 3 is integrally formed with the adhesive layer 11 interposed therebetween.

The adhesive layer 1 shown in FIGS.
1 is appropriately selected depending on the resin material of the housing 3.

FIG. 5 is a cross-sectional view of the film material insert molding apparatus according to the first embodiment of the present invention. The film material 1 is formed on one side of an injection mold 15 for injection molding the housing 3. The state set in the mold 17 which is a metal mold is shown. The injection mold 15 is composed of the mold 17 and a core 23 having a convex portion 21 that enters the concave portion 19 formed in the mold 17.

The mold 17 is divided into a mold main body 25 and a nesting mold 27 accommodated in the mold main body 25, and a dividing line L exposed on the mold surface between the two molds 25 and 27. Are located inside the outer peripheral edge of the set film material 1 over the entire circumference.

A gap 29 is formed between the mold body 25 and the nesting mold 27 as a suction passage.
Are open on the surface of the mold at the division line L. A vacuum pump 35 as a suction means is connected to the gap 29 via a through hole 31 formed in the mold body 25 and a pipe 33 communicating with the through hole 31. The vacuum pump 35 and the gap 29 constitute a temporary holding mechanism for temporarily holding the film material 1.

On the other hand, an injection port 37 for injecting and supplying the molten resin into the mold is provided in the center of the core mold 23, and an ejector pin 39 for pushing out the molded product is provided outside the injection port 37.

In the above-described film material insert molding apparatus, as shown in FIG. 5, the film material 1 is set in the mold 17 while the injection mold 15 is opened. At this time, the dividing line L between the mold body 25 and the nesting mold 27 is located inside the outer peripheral edge of the film material 1.

In this state, the vacuum pump 35 is operated, and air is sucked through the gap 29, the through-hole 31 and the pipe 33, whereby the film material 1 is adsorbed on the mold 17 and securely held temporarily. Become. After the temporary holding, the injection mold 15 is closed, and when the molten resin is injected and supplied into the mold from the injection port 37 at the center of the core mold 23, the resin is filled outward from the center. Since the film material 1 is in close contact with the mold 17, no resin enters between the film material 1 and the mold 17. Thereby, the film material 1 for design is integrally formed on the surface of the housing 3 shown in FIG. 1, and a part of the housing 3 is decorated.

After the resin is filled, the molded product is cooled, the suction operation by the vacuum pump 35 is stopped, and the mold is opened.
The ejector pin 39 operates to push out the integrally molded product, and the insert molding operation is completed.

In order to decorate a part of the housing of the conventional door mirror, a garnish integrally formed with a design film material on the back side (housing side) of a transparent resin is fixed to the housing (Japanese Utility Model Laid-Open No. 2-74248). Reference). However, in this case, since a garnish is required in addition to the film material, the cost is increased due to the molding cost, the assembling cost, and the like, and the film material 1 is integrally formed with the housing 3 as in the above embodiment. Thus, cost reduction can be achieved. In addition, the above-mentioned conventional one has a problem in that the design surface becomes deep due to the presence of the film material for the design on the back side of the transparent resin, making it difficult to match the color with the painted portion of the vehicle body. By integrally molding the film material 1 on the surface of the housing 3 as in the embodiment, a design having the same quality as the painted portion of the vehicle body can be obtained.

FIG. 6 shows a mold cavity 17 of an insert molding apparatus for a film material according to a second embodiment of the present invention. This embodiment is different from the mold 1 shown in FIG.
Instead of the nesting mold 27 of FIG. 7, a nesting mold 41 made of a breathable mold material is used. The other configurations including the core type are the same as those in FIG. 5, and the same components are denoted by the same reference numerals. However, no gap is provided between the nesting mold 41 and the mold body 25 here.

In the embodiment shown in FIG. 6 as well, the operation of the vacuum pump 35 allows the fiml 1 set in the mold 17 to be adsorbed through the air-permeable portion of the nest 41 and thus to be temporarily held securely. Therefore, the temporary holding mechanism here includes the nesting type 41 and the vacuum pump 35. In this case, since the suction from the gap 29 is not performed as shown in FIG. 5, the shape due to the gap 29 does not remain in the film material 1 and the appearance quality of the film material 1 can be improved.

FIG. 7 shows a modification of FIG. 6, in which a plurality of nesting dies 43 made of a mold material having air permeability are arranged only near the outer peripheral edge of the film material 1.

FIG. 8 shows a film material insert molding apparatus according to a third embodiment of the present invention. FIG.
8 is an enlarged view of a portion A in FIG. 8. In this embodiment, the outer peripheral edge 1 a of the design film material 1 is
The protrusion 21 has a groove 21a into which the outer peripheral edge 1a is inserted. The groove 21a is formed in the opening and closing direction of the mold, and forms a temporary holding mechanism for temporarily holding the film material 1. This temporary holding mechanism is provided on the entire circumference or a part of the film material 1.

The end of the outer peripheral edge of the film material 1 is formed in the groove 21 in a state where the film material 1 is entirely adhered to the surface of the convex portion 21.
At least the vicinity of the injection port 37 of the film material 1 is in contact with the mold 17 when the mold is closed.

Next, the molding process will be described. First, in a state where the mold is opened, the film material 1 is inserted into the outer peripheral edge portion 1a by the groove 2.
1a, it is set on the projection 21 of the core mold 23. At this time, the outer peripheral edge portion 1a of the film material 1 is
a is fixedly held by frictional resistance. After closing the mold in this state, as shown in FIG. 10, the molten resin P is supplied from the injection port 37 of the core mold 23 to fill the mold with the resin. In the process of filling, the film material 1 is pressed against the mold 17 by the pressure of the resin, and the outer peripheral edge 1
a comes off the groove 21a and closely adheres to the surface of the mold 17 so that the filling of the resin is continued.

FIG. 11 shows a state in which the filling operation of the resin is completed. Since the film material 1 is pressed against the mold cavity 17 by the high-pressure resin to be filled, the position is determined at that time, and the displacement occurs. Molding is possible. Further, since the vicinity of the injection port 37 of the film material 1 is in contact with the mold 17 in the mold closed state, even if the high-temperature molten resin is filled from the injection port 37 at a high speed, the heat applied to the film material 1 is increased. Escapes to the side of the mold cavity 17 that has been cooled, so that the occurrence of problems such as melting of the base film 11 and flowing of the ink of the colored layer 7 is prevented.

In the molding apparatus shown in FIG. 8, the film material 1 can be positioned simply by inserting the outer peripheral edge 1a into the groove 21a.
The provision of the temporary holding mechanism avoids poor appearance of the molded product. Further, the resin is filled in the groove 21a. Since the groove 21a is formed in the opening and closing direction of the mold, the molded product can be easily taken out.

FIG. 12 shows an apparatus for insert molding a film material according to a fourth embodiment of the present invention. In this embodiment, at several positions on the core mold 23 side, a mold surface on the side of the film material 1 to be set and through holes 45 respectively opening to the outside on the opposite side to the film material 1 are formed. A pin 47 is inserted and fixed to a portion on the film material 1 side.

As shown in FIG. 12 between the pin 47 and the core mold 23.
As shown in FIG. 13, which is an enlarged view of the arrow B, a gap 49 as a suction passage is formed. The dimension T of the gap 49 is set to about 0.1 mm or less. Through hole 4
5 is provided with a vacuum pump 35 constituting a suction means via a pipe 51 at an end opposite to the film material 1.
When the film material 1 is closed in a state where it is adsorbed through the gap 49, the vicinity of the injection port 37 is in contact with the mold 17 as in the embodiment of FIG.
Thereby, the film material 1 when the high-temperature resin is injected
Damage is avoided.

In the molding operation, after the molten resin is injected and supplied after the mold is closed, the suction operation by the vacuum pump 35 is canceled almost at the same time, and then the resin is further filled, thereby completing the molding operation. The resin to be filled has a size of the gap 49 of 0.1.
Since it is set to be equal to or less than mm, entry into the gap 49 is avoided. Further, the formation of the gap 49 with respect to the core mold 23, that is, the formation of the through hole 45 and the pin 47 can be performed by simple machining, and the temporary holding mechanism is inexpensive.

FIG. 14 shows an apparatus for insert molding a film material according to a fifth embodiment of the present invention. In this embodiment, at several locations on the core mold 23 side, through-holes 51 which are respectively opened to the surface of the film material 1 to be set and the outside opposite to the film material 1 are formed. A drive pin 53 that can move vertically in the figure is inserted and arranged.

The drive pin 53 is formed with a suction head 53a having an enlarged diameter at the end on the film material 1 side, and the suction head 53a is inserted into the large diameter portion 51a of the through hole 51 while the suction head 53a is inserted into the large diameter portion 51a. Forms the same plane as the surface of the projection 21 of the core mold 23. On the other hand, the end of the drive pin 53 opposite to the suction head 53a is
A flange 53b is formed so as to protrude to the outside, and a drive mechanism 55 including an air cylinder or a hydraulic cylinder is connected to the flange 53b. The drive mechanism is fixed to the core mold 23 via a bracket 57, and the drive pin 53 is connected via a drive rod 55a.
The suction head 53a is movably driven between a position where the suction head 53a enters the core mold 23 and a position where the suction head 53a protrudes.

In the drive pin 53, a suction passage 59 is formed, one end of which is open at the tip end surface of the suction head 53a and the other end of which is opened at the side of the flange 53b. A vacuum pump 35 as a suction means is connected. The vacuum pump 35, the drive pin 53, the drive mechanism 55, and the like constitute a temporary holding mechanism.

The film material 1 shown in FIG. 14 is formed so as to substantially match the shape of the concave portion 19 of the mold 17.

Next, the molding process will be described. With the mold open, the drive mechanism 55 is operated to project the drive pin 53 toward the mold 17 and stop at a predetermined position. By operating the vacuum pump 35 in this state, the film material 1 is sucked and held by the suction head 53a. Thereafter, when the mold is closed, the entire film material 1 comes into contact with the surface of the mold 17. In this state, as shown in FIG. 15, the molten resin P is injected and supplied from the injection port 37. Simultaneously with the start of the injection and supply, the operation of the vacuum pump 35 is stopped, and the driving mechanism 55 is operated to drive the driving pin. 53
Retreat.

By further filling the resin P from the state shown in FIG. 15, the film material 1 is integrally formed. In this case, a relatively large suction port is formed on the tip end surface of the suction head 53a, and the resin enters the suction port. However, as shown in FIG. 16, by reducing the suction port 53c, It is possible to prevent the resin from flowing.

According to the above embodiment, the film material 1
Is pressed against and fixed to the mold cavity 17 by the pressure of the resin P, so that it can be integrally molded without displacement. In this case, the film material 1 is a mold 17
8 and FIG. 12, the work efficiency is improved. That is, since the shape of the film material 1 shown in FIGS. 8 and 12 is different from the shape of the mold surface, a complicated operation of repeatedly determining the shape of the film material terminal and the like in advance and determining the shape is performed in advance. Is required.

Further, in the molding apparatus shown in FIG.
The drive pin 53 can also serve as an ejector pin for taking out a molded product after integrally molded.

In each of the above-described embodiments, the device for decorating a part of the door mirror housing has been described.
Alternatively, the film material 1 previously formed into a predetermined shape may be integrally formed on a part of the surface of the bumper 65 shown in FIG.

FIG. 19 is a simplified sectional view of a forming apparatus for integrally forming the fimul material 1 on the mud guard 63. This forming apparatus corresponds to the above-described example of FIG. FIG. 20 is an enlarged sectional view taken along the line CC of FIG.

[Brief description of the drawings]

FIG. 1 is a perspective view of a door mirror housing in which a film material is integrally formed by a film material insert molding apparatus according to the present invention.

FIG. 2 is a sectional structural view of a film material in FIG.

FIG. 3 is a sectional structural view showing another example of a film material.

FIG. 4 is a sectional structural view showing still another example of a film material.

FIG. 5 is a cross-sectional view of the film material insert molding apparatus according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view showing only a mold side of an insert molding apparatus for a film material according to a second embodiment of the present invention.

FIG. 7 is a cross-sectional view showing only the mold-type side of the film material insert molding apparatus showing a modification of FIG. 6;

FIG. 8 is a sectional view of a film material insert molding apparatus according to a third embodiment of the present invention.

FIG. 9 is an enlarged sectional view of a portion A of FIG. 8;

FIG. 10 is an explanatory diagram of an operation at the time of filling a resin in the molding apparatus of FIG. 8;

11 is an operation explanatory view showing a state after completion of resin filling in the molding apparatus of FIG. 8;

FIG. 12 is a sectional view of a molding device according to a fourth embodiment of the present invention.

FIG. 13 is an enlarged view as seen from the arrow B in FIG. 12;

FIG. 14 is a sectional view of a film material insert molding apparatus according to a fifth embodiment of the present invention.

FIG. 15 is an operation explanatory view of the molding apparatus of FIG. 14;

FIG. 16 is an enlarged cross-sectional view of a suction unit showing a modification of the molding apparatus of FIG.

FIG. 17 is a perspective view showing a state in which a mudguard has been partially decorated by the film material insert molding apparatus of the present invention.

FIG. 18 is a perspective view showing a state in which a bumper is partially decorated by the film material insert molding apparatus of the present invention.

19 is a cross-sectional view of a film material insert molding apparatus for integrally molding a film material with the mud guard of FIG.

20 is an enlarged sectional view taken along the line CC of FIG. 18;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film material 15 Injection molding die 17 Cavity mold 19 Concave part 21 Convex part 21a Groove 23 Core type 25 Die body 27 Nesting type 29 Gap (suction passage, temporary holding mechanism) 35 Vacuum pump (suction means, temporary holding mechanism) 37 Injection port 41, 43 Nesting type (temporary holding mechanism) 47 Pin 49 Gap (suction passage, temporary holding mechanism) 53 Drive pin (temporary holding mechanism) 55 Drive mechanism (temporary holding mechanism) 59 Suction passage L Division line

Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29L 9:00 31:30

Claims (11)

[Claims] A film material insert molding apparatus for setting a film material in an injection mold and integrally molding the same.
An insert molding apparatus for a film material, wherein a temporary holding mechanism for temporarily holding the film material is provided in one of the injection molding dies. 2. A temporary holding mechanism, comprising: a suction passage having one end open facing the film material and the other end communicating with the outside of the mold; and sucking air through the suction passage to move the film material to the opening. 2. The film material insert molding apparatus according to claim 1, further comprising a suction means for performing suction. 3. One of the molds is composed of a mold body and a nested mold divided with respect to the mold body such that a dividing line is positioned inside an outer peripheral edge of the film material temporarily held,
3. The apparatus according to claim 2, wherein the suction passage is formed by a gap formed between the mold body and the nesting mold. 4. A tentative holding mechanism comprising: a nested mold made of a permeable mold material provided at a portion corresponding to a film material to be temporarily held; and air suction through a permeable portion of the nested mold. 2. A film material insert molding apparatus according to claim 1, further comprising suction means for sucking said film material into said nest type. 5. The insert molding of a film material according to claim 1, wherein the temporary holding mechanism is a groove into which the outer peripheral edge of the film material is inserted, the groove being formed in the opening and closing direction of the mold. apparatus. 6. An injection molding die, comprising: a core die having a projection;
6. The insert molding apparatus for a film material according to claim 5, further comprising a mold having a concave portion into which the convex portion is inserted, wherein a groove is formed in the convex portion of the core mold. 7. An injection port for molten resin is provided in a core mold,
7. The apparatus according to claim 6, wherein at least the film material near the injection port is in contact with the concave portion when the injection mold having the convex portion inserted into the concave portion is closed. 8. A pin whose one end face is flush with the surface of the mold facing the film material is inserted and fixed in one of the molds, and the suction passage is formed by a gap formed between the pin and the mold. 3. The insert molding apparatus for a film material according to claim 2, wherein: 9. An injection molding die comprising: a core die having a projection;
The projection is formed of a mold having a concave portion into which a convex portion is inserted, and an injection port of a molten resin and a temporary holding mechanism are respectively provided in the convex portion, and a film material is temporarily held by the temporary holding mechanism, and 9. The film material near at least the injection port is in contact with the concave portion when the injection mold in which the convex portion is inserted into the concave portion is closed.
Insert molding equipment for the film material. 10. A temporary holding mechanism drives a drive pin whose one end face can move between a position forming the same surface and a position protruding with respect to a mold surface facing the film material, and the drive pin. 2. The film material insert molding apparatus according to claim 1, further comprising a driving mechanism and suction means for sucking air through the suction passage formed in the driving pin to suck the film material. 11. A method of insert-molding a film material in which the film material is set in an injection mold and integrally molded, wherein the mold is closed while temporarily holding the film material in one of the injection molding dies, A method for insert molding a film material, comprising supplying a molten resin into a mold and performing insert molding.